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포스터 발표 : 토양 환경 분야(PS) ; PS-09 : 왕겨 바이오차의 암모늄태 질소(NH4-N) 흡착특성 [Adsorption Characteristics of Aqueous Ammonium using Rice Hull-Derived Biochar]

Title포스터 발표 : 토양 환경 분야(PS) ; PS-09 : 왕겨 바이오차의 암모늄태 질소(NH4-N) 흡착특성 [Adsorption Characteristics of Aqueous Ammonium using Rice Hull-Derived Biochar]
Publication TypeJournal Article
Year of Publication2015
AuthorsChoi, Yong Su, Lee Sun Il, Kim Sung Chul, and Shin JoungDu
Journal한국환경농학회 학술발표논문집 (Korea Environmental Agriculture Conference)
Abstract

Objective of this study was to investigate adsorption characteristics of NH4-N to biochar produced from rice hull in respective to mitigation of greenhouse gases. NH4-N concentration was analyzed by UV spectrophotometer. For adsorption experiment of NH4-N to biochar, input amount of biochar was varied from 0.4 to 10 g L-1 with 30 mg L-1 NH4-N solution. Its adsorption characteristic was investigated with application of Langmuir isotherm. Adsorption amount and removal rates of NH4-N were decreased at 53.9% and increased at 20.2% with 10 g L-1 compared to 0.4 g L-1, respectively. The sorption of NH4-N to biochar produced from rice hull was fitted well by a Langmuir model. The largest adsorption amount(qm) and binding strength constant(b) of NH4-N were calculated as 0.4980 mg g-1, and 0.0249 L mg-1, respectively. It was observed that dimensionless constant(RL) was 0.58. It was indicated that biochar produced from rice hull is favorably absorbed NH4-N because this value lie within 0

URLhttp://www.papersearch.net/view/detail.asp?detail_key=09202857